<template>
<div class="app-container">
<el-form label-width="120px">
<el-form-item label="讲师名称">
<el-input v-model="teacher.name"/>
</el-form-item>
<el-form-item label="讲师排序">
<el-input-number v-model="teacher.sort" controls-position="right"
:min="0"/>
</el-form-item>
<el-form-item label="讲师头衔">
<el-select v-model="teacher.level" clearable placeholder="请选择">
<!--
数据类型一定要和取出的json中的一致，否则没法回填
因此，这里value使用动态绑定的值，保证其数据类型是number
-->
<el-option :value="1" label="高级讲师"/>
<el-option :value="2" label="首席讲师"/>
</el-select>

</el-form-item>
<el-form-item label="讲师资历">
<el-input v-model="teacher.career"/>
</el-form-item>
<el-form-item label="讲师简介">
<el-input v-model="teacher.intro" :rows="10" type="textarea"/>
</el-form-item>


 <!-- 讲师头像：TODO -->
      <!-- 讲师头像 -->
      <el-form-item label="讲师头像">

          <!-- 头衔缩略图 -->
          <pan-thumb image="teacher.avatar"/>
          <!-- 文件上传按钮 -->
          <el-button type="primary" icon="el-icon-upload" @click="imagecropperShow=true">更换头像
          </el-button>

          <!--
      v-show：是否显示上传组件
      :key：类似于id，如果一个页面多个图片上传控件，可以做区分
      :url：后台上传的url地址
      @close：关闭上传组件
      @crop-upload-success：上传成功后的回调 
        <input type="file" name="file"/>
      -->
          <image-cropper
                        v-show="imagecropperShow"
                        :width="300"
                        :height="300"
                        :key="imagecropperKey"
                        :url="BASE_API+'/eduoss/fileoss'"
                        field="file"
                        @close="close"
                        @crop-upload-success="cropSuccess"/>
      </el-form-item>

      <el-form-item>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">保存</el-button>
      </el-form-item>
    </el-form>

  </div>
</template>
<script>
import teacher from '@/api/teacher/teacher.js'
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'

export default {
    components: { ImageCropper, PanThumb },
    data(){
        return{
        teacher:{
            name: '',
            sort: 0,
            level: 1,
            career: '',
            intro: '',
            avatar: ''
    
        },
      
      //上传弹框组件是否显示
      imagecropperShow:false,
      imagecropperKey:0,//上传组件key值
      BASE_API:process.env.BASE_API, //获取dev.env.js里面地址

      saveBtnDisabled:false , // 保存按钮是否禁用,
        id:''  //讲师id
        }
    },
    created() {
        this.init()
 },

    

 watch: {
        $route(to,from){ //路有变化 就会执行
            this.init()
        } 
 },
 
    methods:{
close(){//关闭弹窗的方法
   this. imagecropperShow=false
    this.imagecropperKey=this.imagecropperKey+1
},
cropSuccess(data){//上传成功的方法
    this.teacher.avatar=data.url
},

        init(){

            
      console.log('created')
    if (this.$route.params && this.$route.params.id) {
    this.id = this.$route.params.id
    this.getInf()
 }else{
     this.teacher={}
 }
 },
        //根据id查询方法
        getInf(){
            teacher.getTeacherIno(this.id).then(response=>{
                this.teacher=response.data.teacher
            }).catch(error=>{
            console.log(error)
        })
        },
        saveOrUpdate(){
            if(!this.teacher.id){
                this.saveTeacher()
            }else{
                this.updateTeacher()
            }
           
        },
        updateTeacher(){
            teacher.updateTeacher(this.teacher).then(response=>{
                this.$message({
                        type: 'success',
                        message: '修改成功!'
          });
          this.$router.push({path:'/teacher/table'}) //路由跳转
            }).catch(error=>{
            console.log(error)
        })
        },


        saveTeacher(){
            teacher.addTeacher(this.teacher).then(response=>{
                    this.$message({
                        type: 'success',
                        message: '添加成功!'
          });
          this.$router.push({path:'/teacher/table'}) //路由跳转
            }).catch(error=>{
            console.log(error)
        })
        }
    }
}
</script>
